OpenAI adds lighter Realtime API model for voice agents
OpenAI had spent recent months pushing reasoning, coding and cyber defense, leaving voice-agent infrastructure comparatively untouched.
Added two new Realtime API models for low-latency voice agents: GPT-Realtime-2.1 and lighter GPT-Realtime-2.1-mini (MarkTechPost).
Good news if you're building call-center or voice-assistant apps — more model options. If you only ship text chatbots, this barely matters.